Piston tool



P. D. REYNOLDS March 21, 1933'.

' PISTON TOOL Filed July 6,1952

J A a 1? ,D. Regrzofg,

Patented Mar. 21, 1933 UNITED STATES POSEY D, REYNOLDS, F RUSTBURG, VIRGINIA .rrsroiv moon Application filed July 6, 1932. Serial No. 621,108.

This invention relates to tools for pistons.

and has for the primary object, the provision of a device of the above stated character whereby a piston may be readily handled during the fitting thereof to a cylinder and is so constructed that it will permit the passing of the piston entirely through the cylinder when desired and which. may be easily and quickly applied and removed from the piston by ter. V r 7 With this and other objects in view, this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter morefully described and claimed.

For a complete understanding of my in:

vention, reference is to behad to the following description and accompanying drawing, in which Figure 1 is a vertical sectional view illustrating a tool applied to a piston and constructed in accordance with my invention.

Figure 2 is a side elevation partly in section showing from a piston. v 1 I Figure 3 is a sectional viewtaken on the line 33 of Figure 2.

Referring in detail to thedrawing, the numeral 1 indicates a tool especially adapted for handling pistons and includes a pair of shanks 2 of considerable length. The shanks at one end have formed thereon handles 3 which extend at right-anglesto the shanks and may be formed by bending a portion of the shanks. The shanks 2 adjacent the handles are provided with aligned openings 4, to loosely receive a rivet 5 whereby the shanks are pivotally connected. The free ends of the shanks are arcuately curved to form jaws 6 adapted to fit about a wrist pin 7 of a piston 8 as shown in Figure 1. A collar or ring 9 is slidably mounted on the shanks 2 and when moved towards the jaws will urge the latter about a wrist pin to prevent accidental displacement of the tool from the piston. The shanks 2 are preferably of rectangular shape in cross section'as shown in Figure 3. To apply the tool 1 to a wrist pin of a piston, the handles are moved togripping the wrist pin of the lat the tool opened and removed ward each other pivoting the shanks so as to open the jaws whence the latter may pass freely about the wrist pin. The collar 9'is then slidin the direction of the jaws closing the latter about the Wrist pin. The tool applied to the piston in the aforedescribed 'manner permits a person to fit a'piston in s the cylinder and due to the lengths of the shanks or the distance which the handles are positioned from the piston, the latter may be moved entirely through a cylinder when desired.

WVhileI have shown and described the preferred embodiment ofmy invention, it will I be understood that minor changes in con structlon, COIIlblIlfltlOIl and arrangement of parts may be made without departing from the spirit and. scope of my inventlon, as claimed.

1 Having thus described myinvention, what Iclaim isz v A tool comprising elongated shanks,a rcuate shaped jaws formed on one'of the ends of the shanks, handles formed on the other:- ends of the shanks, said shanks having 7 aligned openings adjacent the handles, a rivet loosely fitted in theaperture's to pivotally connect the shanks, and a collar slidable on the shanks to be movedtowardsthe jaws for urging the latter aboutthe wrist P n of f I Y a piston. V j

In testimony whereof I aflix my signature. POSEY D. ,REYNOLDS. 

